Beautiful natural wood grain, rubberwood material. This product was received from a third party and appears to have been purchased from a workshop called Mokumoku Kobo. I believe there is a core inside, but since it is unused, it is not certain whether the ink will come out. Search Keywords: Kobo Setsuri, mechanical pencil, silver, maple burl, limited edition, rare limited colors, Nohara Kogei, Karin Kome, Karin Kouhaku, black persimmon, peacock wood, Staedtler, Pentel, Loft Limited, Okayama Denim, Lamy, Zelkova, fixed nib, blue black, gunmetal, pencil wedge, marblewood, premium Karin Kome, rare and valuable items, Lamy 2000, Uni Jetstream, mechanical pencil, mechanical pencil set, Rotring, Kobo Setsuri, Craft A, Pentel, MONO, HBK Handmade Workshop, Sharbo X, Zelkova, core case, fountain pen, Rotring, wooden shaft, wooden shaft mechanical pencil, Lupo pen case, Pure Malt, Muji, Hacoa, Sharbo, Zebra, Pentel, Kaweco Pencil Special Blue, silver mechanical pencil, stabilized wood, rosewood, craftA, Luddite, drafting mechanical pencil, Staedtler, Reg, United Bees, Radite, pen case, Lupo pen case, Dev pen case, Romeo, LAMY Lamy, Scribble, discontinued mechanical pencil, Staedtler Full Black, Dr. Grip, Ace Upgrade, Loft Limited, bulk sale, fountain pen, Century Parker, Jotter Special, Parker Jotter Core Line, Hands Limited, limited color, Kaweco Pencil Special, Kabeko Blue Edition, Orenz Nero, Orenz Metal Clip, Aluminum & Wood Ruler, West Japan Limited, East Japan Limited, Tokai Region Limited, Rhodia, Script, Lamy Safari Limited, TSUTAYA Limited, Lupo 2 pen case, Smash, Loft Limited, Smash, Pro-Use, EnerGel, Acro Ink, Acro Drive S20 0.3, S20, Regno, Pilot, Pentel, Tombow zoom 707, Hexagonal, mechanical pencil lead, rare